Materials makes no other warranty either e xpressed or implied. All information contained in this technical data sheet is to be u sed as a guide and is subject to change without notice. This technical data sheet supersedes all previous data sheets on this product

control of Covale nce Spedalty Mate rials, the user shall d ete rmine the suitability of the products

Materials written instructions. Since many installation factors are beyond the

centering over the exposed sheet end. (For UNI-sleeve products, the closure is preattached and already ce ntered in position.) The sheet should overlap the sheet (exclud in g closure) by 2" (50mm) mínimum .

Sleeve recovery

1. Using the torch , begin at the ce nter of the

sleeve and heat circumferentially around the p ipe, usin g a consta nt paintbrush motion. While heating, the embossed or dimpled pattern on the sheet surface should change toa smooth surface.

4. Particular attention shou ld be paid to the

weld and cut-back area.

2 . Us ing a torch, adju st flame le ngth to

approxi mately 20" (500mm) to

yellow flame. Using the ye llow portian of the flame, heat the closure evenly until the pattern of the fabric reinforcement is visible.

produce a

2 . Continue heating toward one end of the sleeve, followed by the oth er. Note:

With gloved hand, pat down the clos ure and smooth any wrinkles by gently working them outward from the center of the closure.

3 . When th e sleeve the jo int a rea, ru n a

sleeve to push out any trapped air.

has been shrunk onto

small hand roller over th e

5 . Sleeve is fully recovered when all of the followin g have occurred:

1) There are no cold spots or dimples on the sleeve surface. 2) Weld bead profile can be seen through the sleeve. 3) After sleeve is cool, mastic flow is evident on both edges. 4) The sleeve has fully conformed to the pipe and adjacent coating. 5) The pattern on the backing has disappeared and th e backin g has a smooth surface.

The supplier is responsible for the performance of all inspection tests spec if ied herein. The suppl ier may utilize his own or any other inspection facility and services acceptab le to the buyer. lnspection records of the exam ination and tests shall be kept complete and ava ilable. The procedures to be fo llowed w ill be in accordance with the Covalence Qua lity Assurance Manual.

Th is specif ica ti on states the requ irements for heat-shrinkable Thermofit Wraparound Pipe Sleeves, Type WPC 65M to be used for corros ion prevention sealing of pipe j oints on various types of piping systems, includ ing oil , gas, w ater, pipe-type cable, and others. Type WPC 65M sleeves are made w ith a special high performance mastic for corros ion prevent ion and sealing on elevated temperature pipe li nes operating up to 65°C (150°F). WPC65M sleeves should not be used on lines subj ect to high ax ial stresses due to so il or pipe movement or exposed to certain chem ical environments; consu lt Covalence CPG for speci f ic recommendat ions for pipelines fac ing these conditions.

2.0

DESCRIPTION

Type WPC

around the pipe jo int to be protected; a closure is then installed, form ing a tube, and the sleeve shrunk in place. WPC 65M/UNI has the closure preattached in the factory and is supplied as a one-piece wraparround sleeve.